11986666701590 has 64 divisors (see below), whose sum is σ = 26109809599104. Its totient is φ = 3867812855808.

The previous prime is 11986666701587. The next prime is 11986666701617. The reversal of 11986666701590 is 9510766668911.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31963814 + ... + 32336646.

It is an arithmetic number, because the mean of its divisors is an integer number (407965774986).

Almost surely, 2^{11986666701590} is an apocalyptic number.

11986666701590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11986666701590 is an abundant number, since it is smaller than the sum of its proper divisors (14123142897514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11986666701590 is a wasteful number, since it uses less digits than its factorization.

11986666701590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399881.

The product of its (nonzero) digits is 29393280, while the sum is 65.

The spelling of 11986666701590 in words is "eleven trillion, nine hundred eighty-six billion, six hundred sixty-six million, seven hundred one thousand, five hundred ninety".